/*背景图*/
.a_background {
	width: 100%;
	height: 100%;
	position: absolute;
}
.a_background_top {
	width: 100%;
	height: 71.6%;
	background-image: url(../images/background/a_background_top.png);
	background-size: 100% 100%;
}
.a_background_middle {
	width: 100%;
	height: 13.1%;
	background-image: url(../images/background/a_background_middle.png);
	background-size: 100% 100%;
}
.a_background_botton {
	width: 100%;
	height: 15.3%;
	background-image: url(../images/background/a_background_botton.png);
	background-size: 100% 100%;
}
